Circuit closer



H. B. BRADEY CIRCUIT CLOSER Filed latch 18 Patented Oct. 6, 1925.

UNITED STATES PATENT oF-Fics.

HARRY B. BRADEY, 0F YACOLT, WASHINGTON.

vAppeation ledzlarch 18, 1924. Serial No. 700,121.

lreference being had to the accompanying drawings.

This invention relates to certain improvements in signal devices and hasrelation more particularly to a device of this general characterespecially designed and adapted for use in connection with doors,windows, and the like and it is an object of this invention to providenovel and improved means whereby the opening of a door, Window, or thelike results in the automatic closing of the circuit of an electricsignalling instrument.

Another object of this invention is to provide a device of thischaracter having novel and improved means located adjacent the inner andouter door or window frames whereby the device may be rendered operativeor inoperative, together with additional means to break the circuit andprevent functioning of the device when the first named means isoperative.

An additional object of the invention is to provide a device of thischaracter which may be employed to illuminate automatically the interiorof a building previous to entry, or which may be used as a signal deviceto be placed upon a door or window to cause a visual or audible alarm orboth to function, thus warning of the opening of said door or window.

The invention consists in the details of construction and in thecombination and arrangement of the several parts of my improved signaldevice whereby certain important advantages are attained and the devicerendered simpler, less expensive, and otherwise more convenient andadvantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitelyclaimed.

In order that my invention may be the better understood, I will nowproceed to describe the same with reference to the accompanyingdrawings, wherein it will be understood that various changes andmodifications may be made as to the detailed construction andarrangement of parts without departing from the spirit of the inventionas hereinafter claimed, and in which drawings 2- Figure l is a sectionaland plan view of the complete device in the operative position Figure 2is a similar view showing the switch mechanism in the closed position.

As disclosed in the accompanying drawings, 10 denotes a metal casing orhousing set within the door frame ll and having its vertical front.plate l2 flush with the face of the frame and partly underlying thebul'i'er strip 13. A movable switch blade lis arranged within the casingl0 and supported -on pivot l5 of arm 1G. The blade l/-l is providedadjacentto one end with a slot 1T engaging the pin 1S provided near thcinner end of bolt 20.

The outer end of bolt 20 is projected through the opening 9 in the platel2 into the path of the door 21 and nts into a keeper 22 set in the edgeportion of said door. Bevel faces 23 on the projecting end of bolt 2Oand within the keeper 22 cause the bolt to be given an inward slidingnievement from its projectedposition when the door is opened.

An electric contact 24 is secured to the inner face of the rear plate 19of the casing and is .insulated therefrom. This contact is adapted toengage the switch blade 14 when said blade is shifted by thefinwardmovement of bolt 20 and to maintain it in the shifted position. Aninsulated binding-post 25 connects the contact24 at a point without thecasing with the wire 26 ofan external electric circuit. The other wire27 of the circuit is led through the plate 19 and secured to the bladela.

Adjacent to the outer edge of the plate l2 of the casing 10 is providedan opening 30 which is extended through the buffer strip 13. A stem orshank 31 extends within the casing 10 through opening 30 and theinserted end portion of the stem is provided with a radial extension orlug 32. The stem 8l has bot-h rotational and longitudinal movement andis adapted to engage, through the lug 32, an end portion of the bladelfl, and to impart movement thereto. Such movement is transmitted to theopposite end portion of the blade and results in a` breaking of theelectrical engagement of the blade with the contact 24 and a forcing' ofthe bolt 20 into its projected position within the keeper 22. A spring33 is mounted within the casing on the guide 34 and bears against itsinner end portion operatively engagedY with an arm of the bell cranklever 43. Upon pushing the rod 42 inwardly, the lever 43 will contactwith and impart motion to the blade 14 to move said blade from on to theolf osition. Thus, a person, having entered tlie buildin and closed thedoor, is enabled to place the evice in an operative condition from theinterior. In order to do this, however, I provide a structure, as

is particularly illustrated in the accompanying drawings, wherein therequisite inward movement ofthe rod 42 will be made through theinstrumentality of a key, indicated by broken lines at 35 in Figure 2.

The external electric circuit which the device operates to close maycontain any suitable lnstruments such as the switch and lights 51.Energy for the circuit is furnished by the dry cell or storage battery52.

The operation of my novel device, when set, is such that the opening ofthe door will cause the switch blade contact to close, and said contactwill remain closed until the device is again set by the means providedwithin or without the building.

I claim 1. A circuit closer comprising a movable member and a stationarycasing, said casing containing a stationary contact and a movablecontact, a bolt operatively engaged with the movable contact, said boltprojecting in the path of the movable member when the movable contact isout of engagement with the stationary contact,L said movable memberbeing adapted to contact with and move the bolt in a direction to bringthe movable contact into engagement with the stationary contact, a stemmounted in a wall of said casing for rotational and longitudinalmovement, said stem being rovlded at its insei-ted end with a lug anhaving its opposite end projectin outwardly of said casing and 56rovided wit operating means, said stem eing adapted to contact with andimpart movement to said movable contact, and means within the casing fornormally main., taini said stem out of contact ,withfthe oo movab econtact, and additional means for moving the movable contact out ofengage ment with the stationary contact and u jecting the bolt into thepath of travel omas; movable member. i i .j

2. A circuit closer for use in connection with a relatively stationarymember and a movable member, comprising a casing carried by thestationarymember, a slidableg-,i bolt wit-hin the casin adapted to bepre- 7o 'ected therebeyond, e, movable member aving a recess normally.receiving the boit and acting to retract' the bolt kwhen the movablemember is moved,'a contact sta-f1 tionarily mounted withinthc casing, apivot- 7s ed contact having one end operatively com nected with the boltand adapted itombe brought into engagement with the: Stati f l contactwhen the movable member is and resettn means compris' ,a ke fcc sotrclled stem longitudinally slida le an' mtatable through oneside. ofthecasing .and terminatingin a l adapted to be brought into engagementwith'the other end ofttherfr pivoted' contact for moving it out ci, 35gagement with the stationary contact lan'ti projecting the bolt. Ff;

In testimony whereof I hereunto a'xjny signature.

HARRY B. BRADEY..

